Plaster cured before any finish goes on it
Why — act while you have leverage
Paint or putty over green plaster seals in moisture that then pushes the finish off the wall. The blistering appears months later and is blamed on the paint.
What to look at
- A curing record per room, with dates
- No painting started on a wall plastered within the week
How to check it yourself
Plaster is kept damp for the specified period before any putty, primer or paint. In coastal Kerala humidity the surface can feel dry while the body of the plaster is not — the test is time and curing record, not touch.
Where this comes from: IS 1661:1972; IS 456:2000 cl. 13.5 as the curing analogue (indian standard or building code)
More plastering checks
- Photograph before this is covered
- Plaster thickness and mix as specified, on a wetted surface
- Plastering sand is plastering sand, not concrete sand